115233220 has 48 divisors (see below), whose sum is σ = 253548288. Its totient is φ = 43908480.

The previous prime is 115233203. The next prime is 115233221. The reversal of 115233220 is 22332511.

It is not an unprimeable number, because it can be changed into a prime (115233221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182305 + ... + 182935.

It is an arithmetic number, because the mean of its divisors is an integer number (5282256).

Almost surely, 2^115233220 is an apocalyptic number.

115233220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115233220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126774144).

115233220 is an abundant number, since it is smaller than the sum of its proper divisors (138315068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115233220 is a wasteful number, since it uses less digits than its factorization.

115233220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060 (or 1058 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 115233220 is about 10734.6737258288. The cubic root of 115233220 is about 486.6229261578.

Adding to 115233220 its reverse (22332511), we get a palindrome (137565731).

The spelling of 115233220 in words is "one hundred fifteen million, two hundred thirty-three thousand, two hundred twenty".